diff --git a/tcl.spec b/tcl.spec
index 03bf220..2dcc5cf 100644
--- a/tcl.spec
+++ b/tcl.spec
@@ -5,7 +5,7 @@
 Summary: Tcl scripting language development environment
 Name: tcl
 Version: %{majorver}a5
-Release: 6%{?dist}
+Release: 7%{?dist}
 License: BSD
 Group: Development/Languages
 URL: http://tcl.sourceforge.net/
@@ -22,6 +22,7 @@ Patch4: tcl-8.5a5-no_rpath.patch
 #Patch5: tcl-8.4.13-autoconf.patch
 Patch6: tcl-8.5a5-cflags.patch
 Patch7: tcl-8.5a5-makefile.patch
+Patch8: tcl-8.5a5-stackchk.patch
 
 %description
 The Tcl (Tool Command Language) provides a powerful platform for
@@ -75,6 +76,7 @@ cd %{name}%{version}
 pushd ..
 %patch6 -p1 -b .6-cflags
 %patch7 -p1 -b .7-makefile
+%patch8 -p1 -b .8-stackchk
 popd
 
 # patch1 touches tcl.m4, and patch3 touches configure.in
@@ -160,6 +162,9 @@ rm -rf $RPM_BUILD_ROOT
 %doc %{name}%{version}/html/*
 
 %changelog
+* Sun Feb  4 2007 Jakub Jelinek <jakub@redhat.com> - 8.5a5-7
+- fix broken stack checking code (#226785)
+
 * Thu Jan 25 2007 Marcela Maslanova <mmaslano@redhat.com> - 8.5a5-6
 - rebuilt for obsoletes rhbz#217735